Belevics G.; Duburs G. Development of in vitro tests for the selection of Ca2+ modulators among 1,4-dihydropyridine . The book of abstr. Ed. by S.Marinov, Zh.Kalitchin, Seventh Intern. conf. of young scientists on organic and biol. chemistry; : Sofia, Publ. House of the Bulg. Acad. Sci., 1990; 133.

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Ābele R. Catalytic oxidation and ammoxidation leading to thiazole-4-aldehyde and 4-cyanothiazole . The book of abstr. Ed. by S.Marinov, Zh.Kalitchin, Seventh Intern. conf. of young scientists on organic and biol. chemistry ; : Sofia, Publ. House of the Bulg. Acad. Sci., 1990; 169.

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Ābele E. Hydrosilylation of aldehydes and ketones induced by fluoride ion under phase-transfer conditions . The book of abstr. Ed. by S.Marinov, Zh.Kalitchin, Seventh Intern. conf. of young scientists on organic and biol. chemistry; : Sofia, Publ. House of the Bulg. Acad. Sci., 1990; 172.